Power-transmission device for motor-vehicles.



No. 883,774. PATENTED APR. '7, 1908. F. G. AVERY.

POWER TRANSMISSION DEVICE FOR MOTOR VEHICLES. APPLICATION FILED MAR. 9. 1904.

2 SHEETS-SHEET 1.

iIlll IIlIllh Wne 5 fzzz/e'zztar. I i 77 64m" PATENTED APR. 7, 1908. F. O. AVERY. POWER TRANSMISSION DEVICE FOR MOTOR VEHICLES.

APPLICATION TILED MAR. 9. 1904.

2 SHEETS-:SHBET 2.

Im/ntw a e I To all whom it may concern:

Be it. known that I, FREDERICK O. AVERY,

FREDERICK C. AVERY, OF HARVEY, ILLINOIS.

POWER TBABISMISSION DEVICE FOR MOTOR-VEHICLES.

a citizen of the United States, residing at I .Harvey, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Power-Transmission Devices for Motor Vehicles, the object, of

which is to provide a simple and effective running-gear and also a convenient plarrof the arrangement of the motor and transmission parts, in order to give the most room for the conveying capacity of the vehicle.

' 'The accompanying drawings show the frame wheels and springs adapted for heavy vehicle work such as: coaches, ,trucks, etc.

but the motor and "transmission parts as shown will applyto any style of vehicle.

Figure 1 represents a plan View of the motor vehicle frame showing thev location.

of the motor and the driving gear constructlon. Fig. 2 is a side-elevation of the same. Fig. 3 is a view of the driving mechanism showing the method of converting a double opposite rotar motion into a single rotary motion, in eit 1er direction. Fig. 3, shows a gear located between two rack rods in such a waythat a'rotating movement of the gear will give motion to the rack rods in opposite directions to each other. Fig. 4' shows a' method of forcing the driving friction disk in and outr'of contact with the driven friction wheels. Fig.5 is a side View of the driving mechanism showing the method of reversing the motion of'the diiven parts.

Fig. 6 is a side view of the rack. and pinion cam shown in Fig. i. a

An ordinar type of hydrocarbon motor is shown in .ig. 1 and Fig. 2 from which wheels B. B. one in an opposite direction power is transmitted to the running car by -meansof a friction device as hereina er described. I

.Similar letters of reference indicate the same parts in'the several figures of the drawins. The i riction, disk A. driven by the motor transmits a rotary motion to the friction to the other as shown b the indicator marks in Fig. 3. "The wheelsv 13. are arranged to 5.0

slide on the shafts C and C? but they are held inlace by a feather in order to receive a iding motion on the shaftsOand the journal J. in Fig. 3.

of the bar N.

Patented April 7, 1908.

C". The shafts C and C show a division at The shafts D. D. are also shown divided at the journal 72.. in

order to provide for the double driving systern of transmission as hereinafter described.

In case a single driving sprocket M. with a single chain c. is used in connection with a single driven sprocket W. attached to the usual compensating gears with the divided rear axle, then there will be no division at take the place of the two shafts D. D. The dr ving pinions E. E. are fastened to the shafts C and C The driven gears G. G. arefastened to the shafts D. D. A single intermediate gear F is located between one pinion and one gear G. and the double intermediate gearsF are located between the other pinion E. and the gear G.

It is shown by the indlcator marks in Fig. 3. and Fig. 5. that the opposite rotary motion of the shafts C and C is transmitted by -means of the trains of gears to a single rotary motion of the shafts D. D. in one direction. The driving sprockets M. M. are fastened to the shafts D. D. and by means of the chains 0. c. motion isgiven to the driven sprockets W. W. which are rigidly connected with the vehicle driving wheelsiV. V. in such a way that they revolve with the axle e. The intermediate gears F and F are pivoted on the bracket K. which is arranged to swing on the, shafts .D. D. and the "brackets K. K. are held in place by a connecting bar N. in order to allow them to swing together with the same motion. v

On each side of the pinions E. and the gears G'G. is-located on the brackets K. K. a single intermediate gear F and the double intermediate gears F, the set on one side being out of contact while the set on the other side is in contact. These intermediate the jot irnal h but a single rotating shaft will gears are held in place and also given the swinging motion by the brackets K. K4 It will be seen by referring to Fig. 5. that this arrangement of gearing will give a reverse motion to the shafts D. D. by sim 1y swing}- ing the brackets K. K. as describe by means This reverse motion of gearing is much the same as the reverse, feed motion of the common type of engine lathe, there being two sets of reason stated. brackets K. K. maybe arranged to s concentric with the shafts C and C instea an motor vehicle construction. It will also be seen by referring to Fi 3. that the shafts' I C and O are connec'te gears instdad of one for the t is evident that the other a slipwill take place at the friction contact between the disk A. and the wheels B. B. thus performing-the same function as the usual compensatinggears and split axle with the frame blocks Y. .Y. by means of the hangers c. a-

These ha ers' are arranged to swing on the frame bloc Y. Y. in such a way that the friction wheels B. B. maybe, broughtin and out of contact with r the friction disk A. This movement maybe controlled by a suitable lever not shown.

' the shafts .D. D. are supported from and are T t "e reach rod'O. This distance pinion I. as shown in arran ed to swing concentric with the shafts 0 an- CFj to a's'uitable position as shown. The distance between the rear axle e. and the D.'D. is'determined by. the lengthof may be a tered tosuit thelen th of the ,chain c. by means of the nut? he nut P. is provided with a right and left hand thread for the urpose mentioned; It is also apparent om this arrangement of the swin of the hanger-sh L. to the s afts G and C? and controlled by the r'eachrod O. (which is journaled-to the shafts D) W. W.) thata'ny'ch'ange of load on t ef ra'me f. that may cause the axle springs-X. to move up or down not effect th distance'be tween the sprockets M. M. an W. W. 1 To change the speed of th "transmission parts in reference to the friction disk Asit is 1 necessary to-slide the frictiom'wheels B. B. along the shafts C and C. i I have provided for this by means" of the'rack rods H. H. which are operated b a movement of the I 'g.,3 In orderto bring the friction disk. A. in'and out of contact with the wheels B. B. ,*I .have shown in I .ilig. 4. the disk wheel A. which is arranged to siide on the motor shaft Z. a feather being provided inorder to transmit rotary motion -to the disk A.

The letter R. represents a 'inion or revolving cam operatedby arac rod .T. and engaging with a stationary cam S. The pinion cam R. and the stationary cam S. are

tted loosely on the motorshaft Z. The

stationarycam S. is prevented from turningby a fastening to the box U. as shown. The

' 'era'tor.

'It is also shown thatconnection A v D. and con-- nectedconcentric/witll the dri en s rockets tion disk, two wheels rotated in o rections "thereby, two shafts revo mg with s said wheels,two gear driven shafts revolvin in the same direction, nfeans connecting s'ai gear driven shafts with the opposite rotatin 115 spring Q. forces the disk wheel A. in'contact with the pinion cam 'R. Jt'is'evidenttliat any movement of the rack rod T. will cause In order to provide a convenient arrange ment for the transmission partsmconnecthe disk A. to slide on the motor shaft Z. Y

.tion with the -motor as. described I have te'ct the motor from dust and this same cov-.

ering may be used to protect thevehicle op- Havin described my invention'what I claim an desire to secure by 1s:-.

1. In a power transmission device, a friction, disk, two wheels in friction contact with said disk and rotating in opposite directions, two shafts driven by said wheels, a gear'attached to each of said shafts, two driven shafts, twodrive n two swinging hangers mountedconcentrle with the two first mentioned shafts, said hangers supporting the driven-shafts, two swin in brackets, asingle intermediate ear attac e to one bracket, two interme late rackets arranged to swing in order to move the intermediat'ege'ars in and out of contact with the driven gears as hereinshown and described. I v 2. Ina power transmission device, a power driven shaft, 6. frictiondisk mounted thereon, t-wo friction wheels, a shaft mounted in each of said friction wheels and revolving with said Wh eels, said friction wheels bein free to slide lengthwise on their mounted s afts, means for moving said disk in contact lwith said wheels inorder to rotate said wheels in oppo H other as herein 1 shown I site directions to'each and describede r 3. In a power transmission device, a fricposite-dishafts, a driving sprocket attachede phf said car driven shafts, two vehicle driving each. of said vehicle-drivin wheels,"'chains Iaetters Patent gears mounted thereon,

ears attached to the other bracket, andsaid 'Ill) wheeIs, a driven sprocket rigidly attached to "conhe'c'tin said driving an driven s rocki ets and a :in order to give motion to t 0 vehicle wheels'as herein shown. and described.

.' j '4. Ina power transmissiondevice, a power 'drivenshaft, a friction disk revolvin with and free tq slide lengthwise on said .sgaft, a pressure sp' rihg in contact with said disk, a

stationary em, a" movable cam. in; working contact with .said stationary cam inorder to. give a sliding movement to said disk lengthscribed.

wise of said shaft as shown de-' 5. In a power tron device, a power ed to move said gear, and all in order to give driven shaft, a friction revolvin with a. sliding movement to said disk on its dIlVBIl and free to move lengthwlse on said s sit, a. shaft as herein shown and described.

, pressure spring in contact with said disk, 9. FREDERICK AVERY. a stationary cam, a movable cam in working Witnesses:

oontaci with said stationary com, a ear op' L. D. SHELY,

sgidmovable comm. rack r0 adapt- F. H. AVERY. 

